<!DOCTYPE html>
<html lang="zh-CN">

<head>
  <meta charset="utf-8">
  <meta http-equiv="X-UA-Compatible" content="IE=edge">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <title>Bootstrap 101 Template</title>
  <link href="https://cdn.jsdelivr.net/npm/bootstrap@3.3.7/dist/css/bootstrap.min.css" rel="stylesheet">
  <style>
    .glyphicon {
      font-size: 24px;
      color: #a58;
    }
  </style>
</head>

<body>
  <div class="container">
    <span class="glyphicon glyphicon-bitcoin" aria-hidden="true"></span>
  </div>

  <div class="container">
    <div class="dropdown">
      <button class="btn btn-default dropdown-toggle" type="button" id="dropdownMenu1" data-toggle="dropdown"
        aria-haspopup="true" aria-expanded="true">
        Dropdown
        <span class="caret"></span>
      </button>
      <ul class="dropdown-menu" aria-labelledby="dropdownMenu1">
        <li><a href="#">Action</a></li>
        <li><a href="#">Another action</a></li>
        <li><a href="#">Something else here</a></li>
        <li role="separator" class="divider"></li>
        <li><a href="#">Separated link</a></li>
      </ul>
    </div>
  </div>

  <div class="container">
    <div class="btn-group" role="group" aria-label="...">
      <button type="button" class="btn btn-default">1</button>
      <button type="button" class="btn btn-default">2</button>

      <div class="btn-group" role="group">
        <button type="button" class="btn btn-default dropdown-toggle" data-toggle="dropdown" aria-haspopup="true"
          aria-expanded="false">
          Dropdown
          <span class="caret"></span>
        </button>
        <ul class="dropdown-menu">
          <li><a href="#">Dropdown link</a></li>
          <li><a href="#">Dropdown link</a></li>
        </ul>
      </div>
    </div>
    <div class="container">
      <div class="col-lg-4 col-lg-offset-8">
        <div class="input-group">
          <input type="text" class="form-control" placeholder="Search for...">
          <span class="input-group-btn">
            <button class="btn btn-default" type="button">Go!</button>
          </span>
        </div><!-- /input-group -->
      </div>
    </div>
    <hr>
    <div class="container">
      <div class="col-lg-6">
        <div class="input-group">
          <div class="input-group-btn">
            <button type="button" class="btn btn-default dropdown-toggle" data-toggle="dropdown" aria-haspopup="true"
              aria-expanded="false">Action <span class="caret"></span></button>
            <ul class="dropdown-menu">
              <li><a href="#">Action</a></li>
              <li><a href="#">Another action</a></li>
              <li><a href="#">Something else here</a></li>
              <li role="separator" class="divider"></li>
              <li><a href="#">Separated link</a></li>
            </ul>
          </div><!-- /btn-group -->
          <input type="text" class="form-control" aria-label="Text input with dropdown button">
        </div><!-- /input-group -->
      </div>
    </div>
    <hr>  
    <div class="container">
      <div class="col-xs-6 col-xs-offset-3">
        <ul class="nav nav-pills nav-justified">
          <li role="presentation" class="active"><a href="#">Home</a></li>
          <li role="presentation"><a href="#">Profile</a></li>
          <li role="presentation"><a href="#">Messages</a></li>
        </ul>
      </div>
    </div>
  </div>

  <script src="https://cdn.jsdelivr.net/npm/jquery@1.12.4/dist/jquery.min.js"></script>
  <script src="https://cdn.jsdelivr.net/npm/bootstrap@3.3.7/dist/js/bootstrap.min.js"></script>
</body>

</html>